Air cooler



FIG. 1 is a perspective view as seen from the front and right side ofthe air cooler of this invention;

FIG. 2 is a perspective view as seen from the rear and left side of theair cooler of this invention;

FIG. 3 is a front perspective view as seen from the front and left sidethereof;

FIG. 4 is a perspective view as seen from the rear and the left sidethereof;

FIG. 5 is a left side elevational view, the right side being a mirrorimage thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view;

FIG. 8 is a front view thereof; and,

FIG. 9 is a rear view thereof.

The ornamental design for an air cooler, as shown and described.